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五液力傳送原件液压塑料前述夾具,均採用C、E、及1-4等牌号的液压塑料。下面我们研究1-4牌号液压塑料的物理化学性能。此种液压塑料,在机床的夾具中,已獲得廣泛採用。該液压塑料的原料为: 聚合氯化一價乙烯樹脂 100份(按重量計) 苯二甲酸丁脂 300份(按重量計) 机油:牌号BM-4 100份(按重量計) 硬脂酸鈣 4份(按重量計) 液压塑料用此等原料按照下述方法製造:將机油与苯二甲酸丁脂攪拌,至完全混合,再將聚合氯化一價乙烯樹脂及硬脂酸鈣加入其中。將它們仔細攪拌,然後在15～18°溫度下擱置24小時以使成熟。再將此种混合物置於甘油槽中,用溫度140°～15)°加热溶化(目的为避免此种混合物燒焦)。
Five hydraulic transmission of the original hydraulic plastic jig, are used C, E, and 1-4 grades of hydraulic plastic. Below we study 1-4 physical and chemical properties of hydraulic plastic. This kind of hydraulic plastic has been widely adopted in the fixture of the machine tool. The raw materials for the hydraulic plastic are: Polyvinyl chloride monovalent resin 100 parts by weight Phthalate 300 parts by weight Oil: Grades BM-4 100 parts by weight Calcium stearate 4 parts by weight of hydraulic plastic are made from these raw materials as follows: The machine oil is stirred with butadiene phthalate until it is completely mixed, and the polymeric monovalent vinyl chloride resin and the calcium stearate are added thereto. They are carefully stirred and then left to stand for about 24 hours at a temperature of 15-18 ° C. The mixture is then placed in a glycerin tank and heat-melted at a temperature of 140 ° to 15 ° for the purpose of avoiding scorching of such a mixture.